<template>
  <div class="container">
    <div class="login">
      <el-row type="flex" justify="center" align="middle">
        <el-col :xs="24" :sm="13" :md="13" :lg="13" :xl="13">
          <img class="loginImg" src="../assets/images/login.png">
        </el-col>
        <el-col :xs="24" :sm="9" :md="9" :lg="9" :xl="9">
          <div class="loginForm">
            <el-form ref="loginForm" class="user-layout-login" :model="loginForm" :rules="loginRules">
              <div class="logoContent">
                <el-row type="flex" justify="center" align="middle">
                  <h1>
                    <img src="@/assets/logo/logo.png" class="logo" alt="logo">
                    {{ title }}
                  </h1>
                </el-row>
              </div>
              <el-form-item prop="username">
                <el-input v-model="loginForm.username" size="large" placeholder="账户: admin">
                  <svg-icon slot="prefix" icon-class="用户" class="el-input__icon input-icon"/>
                </el-input>
              </el-form-item>
              <el-form-item prop="password">
                <el-input v-model="loginForm.password" size="large" placeholder="密码: admin123" show-password>
                  <svg-icon slot="prefix" icon-class="锁" class="el-input__icon input-icon"/>
                </el-input>
              </el-form-item>
              <el-row :gutter="16" v-if="captchaEnabled">
                <el-col class="gutter-row" :span="16">
                  <el-form-item prop="code">
                    <el-input v-model="loginForm.code" size="large" type="text" autocomplete="off" placeholder="验证码">
                      <svg-icon slot="prefix" icon-class="安全" class="el-input__icon input-icon"/>
                    </el-input>
                  </el-form-item>
                </el-col>
                <el-col class="gutter-row" :span="8">
                  <img class="getCaptcha" :src="codeUrl" @click="getCode">
                </el-col>
              </el-row>
              <el-form-item>
                <div style="height: 19px;line-height: 19px;">
                  <el-checkbox v-model="loginForm.rememberMe">记住密码</el-checkbox>
                  <div style="float: right;line-height: 19px;">
                    <el-link href="#" target="_blank">忘记密码</el-link>
                  </div>
                </div>
              </el-form-item>
              <el-form-item style="margin-top:24px">
                <el-button
                  size="large"
                  type="primary"
                  htmlType="submit"
                  class="login-button"
                  :loading="loading"
                  :disabled="loading"
                  @click="handleLogin"
                >确 定
                </el-button>
              </el-form-item>
              <el-row class="footer-text">
                <span>还没有账号？</span>
                <el-link href="/register" target="_self">立即注册</el-link>
              </el-row>
            </el-form>
          </div>
        </el-col>
      </el-row>
    </div>
    <img class="decorateImg" src="@/assets/images/background.svg">
  </div>
</template>

<script>

import {getCodeImg} from "@/api/login";
import Cookies from "js-cookie";
import {encrypt, decrypt} from '@/utils/jsencrypt'

export default {
  name: "Login",
  data() {
    return {
      title: process.env.VUE_APP_TITLE,
      codeUrl: "",
      loginForm: {
        username: "admin",
        password: "admin123",
        rememberMe: false,
        code: "",
        uuid: ""
      },
      loginRules: {
        username: [
          {required: true, trigger: "blur", message: "请输入您的账号"}
        ],
        password: [
          {required: true, trigger: "blur", message: "请输入您的密码"}
        ],
        code: [{required: true, trigger: "change", message: "请输入验证码"}]
      },
      loading: false,
      // 验证码开关
      captchaEnabled: true,
      // 注册开关
      register: false,
      redirect: undefined
    };
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  created() {
    this.getCode();
    this.getCookie();
  },
  methods: {
    getCode() {
      getCodeImg().then(res => {
        this.captchaEnabled = res.data.captchaEnabled === undefined ? true : res.data.captchaEnabled;
        if (this.captchaEnabled) {
          this.codeUrl = "data:image/gif;base64," + res.data.img;
          this.loginForm.uuid = res.data.uuid;
        }
      });
    },
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
      };
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true;
          if (this.loginForm.rememberMe) {
            Cookies.set("username", this.loginForm.username, {expires: 30});
            Cookies.set("password", encrypt(this.loginForm.password), {expires: 30});
            Cookies.set('rememberMe', this.loginForm.rememberMe, {expires: 30});
          } else {
            Cookies.remove("username");
            Cookies.remove("password");
            Cookies.remove('rememberMe');
          }
          this.$store.dispatch("Login", this.loginForm).then(() => {
            this.$router.push({path: this.redirect || "/"}).catch(() => {
            });
          }).catch(() => {
            this.loading = false;
            if (this.captchaEnabled) {
              this.getCode();
            }
          });
        }
      });
    }
  }
};
</script>

<style lang="scss" scoped>
.container {
  min-height: 100%;
  width: 100%;
  padding: 10px;
  display: flex;
  vertical-align: middle;
  background-size: cover;
  background-image: url("../assets/images/login-back.jpg");
}

.decorateImg {
  position: absolute;
  height: calc(100% - 10px);
  width: calc(100% - 10px);
}

.login {
  margin: auto;
  padding: 10px;
  background: #FFFFFF;
  box-shadow: 0 5px 15px rgba(0, 0, 0, .15);
  border-radius: 8px;
  z-index: 999;

  .loginImg {
    height: 100%;
    width: 100%;
    padding: 30px;
  }

  .loginForm {
    height: 500px;
    padding: 0 30px;
    border-left: 1px solid #cccccc5e;

    .logoContent {
      margin: 40px auto;

      .logo {
        width: 60px;
        height: 60px;
        padding: 5px;
        border: 1px solid #d5d5d5;
        border-radius: 6px;
        margin-right: 10px;
        vertical-align: middle;
      }

      h1 {
        font-family: montserrat;
        color: #8d8d8d !important;
      }
    }

    .footer-text {
      font-size: 14px;
      height: 19px;
      line-height: 19px;

      span {
        color: #bbbbbb;
      }

      .el-link {
        margin-left: 20px !important;
      }
    }
  }
}

.el-row--flex {
  flex-flow: row wrap;
}

.QRcodeIcon {
  position: absolute;
  right: 0;
  font-size: 32px;
  color: #2f54eb;
  margin-top: 5px;
  margin-right: 5px;
}

.ant-space-align-center {
  color: #8f959e;
  line-height: 30px;
  height: 30px;
}

.user-layout-login label {
  font-size: 12px !important;
}

.el-checkbox__input.is-checked + .el-checkbox__label {
  color: #000000 !important;
}

.user-layout-login {
  border-left: #8c8c8c 3px;

  label {
    font-size: 14px;
  }

  .ant-page-header {
    padding: 60px 0 45px 0;
  }

  .getCaptcha {
    display: block;
    width: 100%;
    height: 40px;
  }

  button.login-button {
    padding: 0 15px;
    font-size: 16px;
    height: 40px;
    width: 100%;
    border-radius: 4px;
  }

  .icons-list {
    .anticon {
      font-size: 30px;
      width: 40px;
    }

    .dingtalk {
      color: #0089FF;
    }

    .WeChat {
      color: #51C332;
    }

    .Alipay {
      color: #06B4FD;
    }

    .Sina {
      color: #D81E06;
    }
  }
}

</style>
